#include <iostream>
#include <signal.h>

#include "../comm/httplib.h"
#include "oj_control.hpp"

using namespace httplib;
using namespace ns_control;

static Control *ctrl_ptr = nullptr;

void Recovery(int signo)
{
    ctrl_ptr->RecoveryMachines();
}

int main()
{
    signal(SIGQUIT, Recovery);
    //用户请求的路由功能
    Server svr;
    Control ctrl;
    ctrl_ptr = &ctrl;
     
    // 获取题目列表
    svr.Get("/all_questions", [&ctrl](const Request& req, Response& resp){
        //返回一个包含所有题目的html网页
        std::string html;
        ctrl.AllQuestions(&html);
        resp.set_content(html, "text/html;charset=utf-8");
    });
    // 用户根据题号获取题目内容
    // questions/100 -> 正则匹配
    // R"()"--raw string   保持字符串原貌, 无需转义
    svr.Get(R"(/questions/(\d+))", [&ctrl](const Request& req, Response& resp){
        std::string number = req.matches[1];
        std::string html;
        ctrl.OneQuestion(number, &html);
        resp.set_content(html, "text/html; charset=utf-8"); 
    });

    // 用户提交代码使用我们的判题功能(1. 测试用例 2. 编译和运行)
    svr.Post(R"(/judge/(\d+))", [&ctrl](const Request& req, Response& resp){
        std::string number = req.matches[1];
        std::string result_json;
        ctrl.Judge(number, req.body, &result_json);
        resp.set_content(result_json, "application/json; charset=utf-8"); 
        // resp.set_content("指定题目的判题: " + number, "text/plain; charset=utf-8");
    });

    svr.set_base_dir("./wwwroot");
    svr.listen("0.0.0.0", 8080);
    return 0; 
}